3 years ago

Find the area of the regular pentagon with side 10 cm and an apothem of 7.8 cm.

Mathematics

1 answer:

Amanda [17]3 years ago

6 0

Answer:

78cm

Step-by-step explanation:

multiply 10 and 7.8

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Convert x2 + y2 -4x = 0 to polar form.

Bingel [31]

Answer:

$r(r-4\cos \theta)=0$

Step-by-step explanation:

We are given the following equation:

$x^2 + y^2 -4x = 0$

We have to convert it into polar form.

We put

$x = r \cos \theta\\y = r\sin \theta$

Putting values, we get:

$x^2 + y^2 -4x = 0\\(r\cos \theta)^2 + (r\sin \theta)^2 - 4(r\cos \theta) = 0\\r^2(\cos^2 \theta + \sin^2 \theta) - 4r\cos \theta = 0\\r^2 - 4r\cos \theta = 0\\r(r-4\cos \theta)=0$

is the required polar form.

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3 years ago

Rajan climbed to a height of 10 ft from the bottom of a climbing wall. He then climbed up an additional 5 ft. What must he do to

max2010maxim [7]

I'm assuming this is a Pythagorean theorem problem. If so the answer would be √125

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Margaret [11]

Answer:

m<1=140

m<2= 40

m<3= 140

m<4= 40

m<5=140

m<6= 40

m<7= 140

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3 years ago

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What is the square root of 9

Nuetrik [128]

It is 3. Because a square root is anything times itself to make an answer. For example:
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Can someone please help me with this? Thank youuu!

Lunna [17]

Answer:

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Step-by-step explanation:

To find the number of terms in an arithmetic sequence, divide the common difference into the difference between the last and first terms, and then add 1.

2008 - 13 = 1995 + 1 = 1996

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